Pizza oven



FIG. 1 is a front perspective view of a pizza oven showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The long-short-long style broken line immediately adjacent the rear of the shaded region forms an unclaimed boundary of the design. The even-length style broken line showing of various elements and the remainder of the pizza oven is for environmental purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for a pizza oven, as shown and described. 